----------------------------Original message---------------------------- At the recent ESRI conference, someone asked an interesting question that I will pose to the net: On aeronautical charts, there is a lat-long location given for airports. Where in the airport is that location? Is it the control tower? Is it the radar? Or somewhere else? Alan K. Jackson - Interpretive Data Processing Coordinator Pecten International Company (a wholly owned subsidiary of Shell Oil Co) voice :(713)544-4442 fax :(713)544-4873 snail :Box 205,Houston,Tx 77001 ..!bcm!shell!ajackson [log in to unmask]